kaarolch / tpl

Use go templates with simple and complex environment variables

tpl

tpl is build for generating config files from templates using simple or complex (lists, maps, objects) shell environment variables. Since the binary has zero dependencies it is build for docker but you can use it across all platform and operating systems.

tpl uses sprig to extend golang's template capabilities.

See test section and have a look at test.tpl (template) and text.txt (result) in test folder for examples.

setup

Just download the binary for your OS and arch from the releases page.

If you want to use it inside your docker image you can add this to your Dockerfile:

RUN curl -sL https://github.com/schneidexe/tpl/releases/download/v0.4.4/tpl-linux-amd64 -o tpl && \
    chmod a+x tpl

build

go get github.com/mitchellh/gox
gox -arch="386 amd64" -os="darwin linux windows"

test

export foo="bar"
export bar="[foo,bar]"
export foobar="{foo:bar,bar:foo}"
export foobaz="{foo:[bar,baz]}" 
export baz="1.0-123"
export number="59614658972"
export null="null"
export empty=
export money="500€"
export special="?&>=:/"
export woot="[]"
export whoa="{}"

go get -v
go run tpl.go -t test/test.tpl | diff - test/test.txt && echo Tests succeeded! || echo Tests failed!